急求关于tomcat配置的问题！大家赶快帮帮忙！
我安装tomcat之后，打http://localhost:8080可以看到tomcat的欢迎页面。但是老是不能打开自己的jsp测试页面，打http://localhost:8080/jsp-examples/jsp2/test.jsp时老实提示：  

type   异   常   报   告  

信   息  

描   述   服务器遇到内部错误，无法满足这个访问请求  

异   常  

org.apache.jasper.JasperException:   无法编译JSP  
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:512)  
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)  
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)  
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)  
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)  


起   因  

org.apache.jasper.JasperException:   无法编译JSP  
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:572)  
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:305)  
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)  
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)  
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)  


起   因  

java.io.UTFDataFormatException:   Invalid   byte   1   of   1-byte   UTF-8   sequence.  
org.apache.jasper.xmlparser.UTF8Reader.invalidByte(UTF8Reader.java:620)  
org.apache.jasper.xmlparser.UTF8Reader.read(UTF8Reader.java:491)  
org.apache.jasper.xmlparser.XMLEncodingDetector.load(XMLEncodingDetector.java:999)  
org.apache.jasper.xmlparser.XMLEncodingDetector.skipString(XMLEncodingDetector.java:950)  
org.apache.jasper.xmlparser.XMLEncodingDetector.scanXMLDecl(XMLEncodingDetector.java:1208)  
org.apache.jasper.xmlparser.XMLEncodingDetector.getEncoding(XMLEncodingDetector.java:120)  
org.apache.jasper.xmlparser.XMLEncodingDetector.getEncoding(XMLEncodingDetector.java:108)  
org.apache.jasper.compiler.ParserController.determineSyntaxAndEncoding(ParserController.java:304)  
org.apache.jasper.compiler.ParserController.doParse(ParserController.java:169)  
org.apache.jasper.compiler.ParserController.parse(ParserController.java:100)  
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:155)  
org.apache.jasper.compiler.Compiler.compile(Compiler.java:295)  
org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)  
org.apache.jasper.compiler.Compiler.compile(Compiler.java:264)  
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)  
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:305)  
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)  
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)  
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)  


注   意   完整的起因在Apache   Tomcat/5.5.20里。  


大家帮忙看看是怎么回事，最好给个解决方法.先谢谢了!


------解决方案--------------------
这个问题是由于数据源的XML文件中有非法字符的引起的。具体Exception为：java.io.UTFDataFormatException